Interactive Catalog Replaces Catalog Pages
Honeywell Sensing and Control has replaced
the PDF product catalog with the new
Interactive Catalog.
The
Interactive Catalog
is
a power search tool that makes it easier to find
product information. It includes more
installation, application, and technical
information than ever before.
Click this icon to try the new
Interactive Catalog.
Sensing and Control
Honeywell Inc.
11 West Spring Street
Freeport, Illinois 61032
Proximity Sensors
One-Piece Ferromagnetic Actuated Reed Proximity Switches
FR ORDER GUIDE
Catalog Listing
Heavy Duty
Wires
Cable
4FR1-6
6FR1-6
4FR2-25
6FR2-6
Sensitivity*
in. (mm)
0.50/12,7
0.75/19,1
MUST
Operate Pt.
0.35/8,9
0.60/15,2
4/6FR Series
Lead Length
Feet/mm
6.0/1,83
6.0/1,83
* Nominal for low carbon steel, 1 x 3 x 0.25 in. (25,4 x 76,2 x 6,35 mm).
Note: 25 and 50 ft. (7,6 and 15,2m) lead lengths can be supplied, but longer lead lengths are not necessarily
stock items.
6FR1-6: 589,5g (20.8 oz)
FEATURES
Internal dry reed switch, ferrous metals
sensitive
One piece construction aluminum
housing
Single pole, single throw, normally open
circuitry
May be used to directly drive low energy
circuits
Long mechanical life
Completely potted enclosure
Hermetically sealed contacts
No-touch detection of ferrous metals
Standard 1/2 inch conduit outlet
Can detect ferrous metal through
non-ferrous metal. Example: Steel
through stainless steel.
CHARACTERISTICS
Circuitry
Response Time
Repeatability (constant actuator
path, at stabilized temperature)
Power rating
AC (maximum)
DC (maximum)*
Initial Contact Resistance
(closed circuit)
Switching Frequency
Single pole, normally open
1 millisecond
0.005 inch (0,13mm)
15 VA, 500 mA, 280 V RMS
15 watts, 500 mA, 400 V
0.060 ohm max.
Dependent on size and speed of
target. Has been tested to 100 Hz,
but should be operated at less than
700-800 Hz resonant frequency.
0.5 millisecond max.
100,000 operations min.
50 million operations
– 20° to
+83°C
(– 4° to
+
181°F)
Reed Bounce Time
Operating Life
Max. Load
With 5FD1 relay load
Temperature Range
* DC rating with contact protection diode [N2071,
International Rect. 10D6, 600V. 1 amp or
equivalent] for increased life.
MOUNTING DIMENSIONS
(For reference only)
B70
Honeywell MICRO SWITCH Sensing and Control 1-800-537-6945 USA
1-815-235-6847 International 1-800-737-3360 Canada
Proximity Sensors
One-Piece Ferromagnetic Actuated Reed Proximity Switches
EFFECTS OF TEMPERATURE ON SENSITIVITY
For proper operation over the total temper-
ature range [with typical actuator (#4)], use
a minimum overtravel of 0.150 in. (3,8mm)
and minimum release travel of 0.250 in.
(6,35mm). Overtravel and release travel will
differ for smaller actuators.
MASS OR ACTUATOR SIZE VS SENSITIVITY
4/6FR Series
Proximity
MAGNETIC ATTRACTION
The switch exerts a magnetic force on the
actuator. The actuator should be secured to
prevent its being drawn to the sensing face.
1. Do not subject the switch to the influence
of strong magnetic fields. External per-
manent magnets should be a minimum
of 6 inches (152mm) from the switch.
2. Ferromagnetic materials (other than the
actuator) should be at least 3 inches
(76,2mm) from the sensing face.
3. Arc suppresion networks must be used
in inductive circuits.
4. These switches should not be subjected
to severe shock.
5. Mount on solid support and protect from
vibration.
6. The switch may fail to release if adjacent
steel parts are too close, or if quantities of
metallic chips are attracted to the sens-
ing face.
7. Do not subject reed switches to high in-
rush currents.
8. Each 4/6FR contains a glass reed switch
and a magnet, and should be handled
and applied accordingly.
Honeywell MICRO SWITCH Sensing and Control 1-800-537-6945 USA
1-815-235-6847 International 1-800-737-3360 Canada
B71
